Noises have to be heard to be correctly diagnoised. Check the motor mounts to see if they are broken.
The pump will need replaced if it is grinding.
The grinding noise in the front of a 1990 Dodge Caravan could be a cv joint. If it is, it probably only grinds when you take a sharp turn. There is one located on each side.
Bearing going bad?
Get your car to a garage immediately! No car should be making any grinding noises while driving. this may suggest a slipping clutch, faulty brakes or maybe even damage to the piston and combustion chambers. it could be either of them which is why this needs to be fixed as soon as possible.
If your engine jumps when accelerating, or when certain noises are made when engine torques.
Could be in need of a tune up. Replace spark plugs, wires, air and fuel filters.
check your swaybar links and bushings
An internal failure in the axle. It will need disassembled to know the actual cause.
Loose belt - will sound like a screeching noise.
Dodge Caravan was created in 1984.
The Dodge Caravan didn't exist until 1984.The Dodge Caravan didn't exist until 1984.